Rim tool



July 8, 1930. Q F, RUBSAM 1,770,015

RIM TOOL Filed April 2, 1923 Patented July 8, 1930 UNITED STATES PATENT OFFICEY CHARLES F. RTJ'BSAIVI, 0F JACKSON, MICHIGAN RIM TOOL Application led April 2, 1923. Serial No. 629,373.

of a tool embodying the invention, applied to a closed rim. Fig. 2 is an inverted plan.k

Fig. 3 is a side elevation showing the tool operatively applied to hold the rim open. Fig. 4 is a perspective 01"' the tool disasso ciated from the rim. Fig. 5 is a detail perspective of the Ahook for locking the tool to one end of the rim. Fig. 6 is a detail perspective of the combined driving and locking plate Which is fixed on one end of the rim. Fig. 7 yis a transverse section taken on line 7-7 of Fig. 1. Fig. 8 is a perspective of a modified form of rim-plate.

The invention is exemplified in a device ortool for operating a demountable tire-rim Which comprises a base A and integral side lflanges a and is obliquely split at a2 to per* mit the rim to be opened and contracted, and expanded and closed, as Well understood in the art. A plate 10 is secured by rivets 11 to the inner periphery of the rim adjacent one of its ends and extends across the split and under the contiguous end of the rim. This plate is provided With an o-pening 13 to receive a radially extending stud or lug 14 Which is riveted to said contiguous end of the rim, to lockthe rim-ends against longitudinal separation. This plate is provided with notches 15 Which are adapted to fit around and receive a bolt on the body of the Wheel to Jform a driving-connection between the Wheel-body and the rim. The corners 10a of the plate 10 are undercut or curved to adapt the plate to radially interlock With the operating tool as Will presently appear.

The improved tool comprises a member 16 Which is adapted to be hooked to the plate l0, so as to be locked radially thereto; a cross-pin 17, pivotally connected to member 16 and adapted to extend through notches 15 to lock member 16 longitudinally to the plate 10; an arm 18 rigid With pin 17 so it Will fulcrum in member 16; a transverse pin 19, riveted to the distal end of the arm; and a bearing-block or member 20 pivotally held on pin 19 and adapted to bear against and ride on the inner periphery of the end of lthe rim Which carries the lug 14 to initially eect relative radial movement of the rim! ends to disengage said lug from plate 10, and thereafter engage one face of the lug 14, to eiect relative longitudinal movement of the rim-ends to contract the rim, when the arm is turned about its ulcrum in member 16. Member 16 comprises sides 16Zt adaptyed to straddle the plate-sides or flanges 12 and having portions 16b adapted to hook into or interlock with the undercut portions 10a of the plate and an integral connecting base 16C. Pivot-holes 16d are formed in sides 16a in Which the ulcruIn-pin 17 is removably held by a stud 17 a which is fixed to said pin. Member 16 is formed with a transverse notch 16e through which stud 17a Will pass to permit the endvvise removal of the fulcrumpin from said member and its insertion therein. The purpose of a removable connection between the ulcrum-pin and member 16 is to permit the member 16 to be separately slipped into hooked relation With plate 10 from one end of the latter and then shifted longitudinally While it is radially locked, to bring pivot-hole 16d into alignment With notches 15, so the fulcrum-pin can be inserted endvvise through holes 16d and said notches to longitudinally lock member 16 and the ulcrum-pin with respect to the rim-end Which carries plate 10. As soon as the arm 18 is rotated relatively to member 16, stud 17a Will pass out of registry With notch 16 so that the ulcrum Will be automatically locked against endWise Withdrawal from member 16 and platel() at all times, except When the rim is closed. Bearing-block 20 is notched, as at 21, to receive and transversely interlock with rim-lug 14.l The block 20 is reversible,

.so either of its ends Will be operative to engage stud 14. Arm 18 is provided with a hexagonal end 23, so a wrench may be applied to turn the arm.

In operation, member 16, while separated from pin 17, will be placed against the inner tace of the rim adjacent one of the ends of plate and then slipped longitudinally of the plate into `hooked relation therewith and until pivot-holes 16d register with notches 15 in plate 10. Fulcrum-pin 17 will then be inserted endwise through holes 16d and notches 15, so that member 16 will then be locked radially to plate 10 and longitudinally by the fulcrum-pin, whereupon the pin will be operative to serve as a ulcrum for the arm '18. By applying a wrench to end 23 of arm `18,`the latter will swing relatively to plate 10,`so that kpin 19 will operate block 20 Y against the inner periphery of the rim-end which carries lug 14 and initially effect relative radial shift of the rim-ends to disengage stud 14 from opening 13 and unlock the rim-ends for relative longitudinal movement or so'the rim maybe contracted. Thereafter, block 2O will ride on the rim -until it encounters lug 14 and then the continued swing of the arm will force said lug and one rim-end into the other until the rim is contractedto the extent desired, as shown in Fig. `3. In such position, the inherent spring of the rim will be applied through lug-14 and the fulcrum-pin, so that the tool will be automatically retained to hold-the rim contracted, as shown in Fig. 3. To close the rim, itis only necessary to swing the arm back to the position shown in Fig. 1. During such swing, the resiliency-of therim will cause lug 14to follow the block 20 until it reachesopening 13 in therim and thereafter the block will move 'away from said lug and swing radially inward, to permit the-lug to ypass into said opening and lock the rim.

When the rim is closed, the stud 17aL will be in registry with notch 16e in member 16, so

the tulcrum canrbe withdrawn from said "member". `Upon withdrawal of the fulcrumpin, the member 16 can be slipped longitudinallyof the` plate 10.

A somewhat different form of rim-plate with which` the improved tool is adapted to be used is illustrated in Fig. 8, in whichY a plate 10c isriveted to one end of the rim, is

extended to lap under the other end of the Vrim and provided with a lug 2()a which is i adapted to pass into a slot'in the latter end V ot' the rim. This plate is formed of cast metal and has a radially inward projecting lug 21a Jformed with a recess 22a to receive one-of the cross bolts on-the wheel body to form a driving connection for the rim. The

side edges of plate 10c are curved, as at 23,

to receive the hook portions 16b of tool member 16. In using the tool' on this type of rim, member 16 may be slipped into hooked :s engagement and shifteduntil holes 16d are hook-member is separable from the fulcrumpin;` in which the i'ulcrum-pin is adapted to pass through the usual notches in the rimplateg and in which the second member is adapted to engage the rim-end locking-lug.

The invention is not to be understood as restricted to the details set forth, since these -may be modified within the scope of the appended claims, without departing from the spirit and scope ci the invention.V

Having thus described the invention, what l claim as new and desire to secure by Letters Patent, is: Y

1. Artool for operating split rimscomprising an arm, a member in which the arm is removably ulcrumed having integral means to Vhook onto the edges of a plate on the inner periphery of one end of a rim and lock it radially thereto, and a member on the arm to engage the other rim-end.

V2. A tool for operating split rims comprising an arm, a member in which the arm is fulcrumed, provided with sides adaptedto slide onto and interlock radially with a plate on the `inner periphery oi' one rim-end, and a connecting portion to extend under the plate, and a member to engage the other rim-end.

f i 3.V A tool for operating split rims comprising an arm, a member having a transverse .opening therein and provided with means to interlock radially with a plate Yon one rim-end,

Y a ulcrum-pin on said arm and slidable endwise into and out or" said opening, and a member on the arm for engaging the other rimend. i

4. A tool for operating split rims comprising an arm, a member having a transverse opening `therein and provided with means to interlock radially withv a plate on one rim- .,end, a ulcrum-pin on said arm and slidable endwise into and out of said opening, means between the pin Yand said member to automatically lock them together when the arm is turned, anda member on the arm for engaging the other rim-end.

5. A tool foi-'operating split rims comprising an arm, a member having a transverse opening therein and provided with means to interlock radially with a plate on one rim-end,

a fulcrum-pin on said arm and slidable endwise into and out of said opening, a stud and recess connection between the pin and saidmember to lock the pin against withdraWal, and a member on the arm for engaging the other rim-end.

6. A tool for operating a demountable split rim having its `ends provided respectively With elements projecting inwardly from its inner periphery to interlock them circumferentially, comprising a member provided With means formed to hook into radially interlocked relation with one of the elements, the member and means being adapted when in their hooked position to extend completely Within the inner periphery of the rim; and an operating arm to which said member is pivotally connected, provided with means to bear against and slide on the inner periphery of the other rim end when the arm is operated While the member is in its hooked position with said element to separate the rim ends radially and until arrested by the other element.

7. A tool for operating a split demountable rim having its ends provided respectively With an interlocking plate and lug, comprising a member having means to radially interlock With the plate, and an operating arm to which said member is pivoted, provided With means to engage the end of the rim carrying the lug, said arm being movable to radially separate the rim ends and unlock the plate and lug and to slide the means into engagement With the lug after the rim-ends have been separated.

Signed at Jackson, Michigan, this 17th day 1 of March, 1923.

CHARLES F. RUBSAM. 

